function allwords()
	local line = io.read() -- current line
	local pos = 1 -- current position in the line
	return function () -- iterator function
		while line do -- repeat while there are lines
		local s, e = string.find(line, "%w+", pos)
		if s then -- found a word?
			pos = e + 1 -- next position is after this word
			return string.sub(line, s, e) -- return the word
		else
			line = io.read() -- word not found; try next line
			pos = 1 -- restart from first position
		end
	end
	return nil -- no more lines: end of traversal
	end
end

reserved= { ["while"]= true, ["end"] = true}
for w in allwords() do 
	if not reserved[w] then
		print(1)
	else
		print(20)
	end
end

